//
//  NSDictionary+Ex.m
//  MJApp
//
//  Created by John on 15/5/13.
//  Copyright (c) 2015年 wangliang. All rights reserved.
//

#import "NSDictionary+Ex.h"

@implementation NSDictionary (Ex)
- (id)cusObjectForKey:(id)aKey{

    if ([self[aKey] isKindOfClass:[NSNull class]]) {
        return nil;
    }
    return self[aKey];
}
@end
